Vaporization core component for electronic cigarettes, cartridge for electronic cigarettes, and electronic cigarette

ABSTRACT

A vaporization core component for electronic cigarettes, a cartridge for electronic cigarettes, and an electronic cigarette. The vaporization core component for electronic cigarettes includes a liquid guide body and a heating element. The liquid guide body has a first end surface and a second end surface. At least a part of the first end surface is a liquid absorption region. At least a part of the second end surface is a vaporization region. The heating element is arranged in the vaporization region of the second end surface. In the vaporization core component, a position of the liquid absorption region is opposite to a position of the vaporization region, and an area of the liquid absorption region is smaller than an area of the vaporization region. The heating element is arranged in the vaporization region of the second end surface.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a continuation of International Application No. PCT/CN2023/078958, filed on Mar. 1, 2023, which claims priority to and benefits of Chinese Patent Application No. 202210249721.0, entitled “VAPORIZATION CORE COMPONENT FOR ELECTRONIC CIGARETTES, CARTRIDGE FOR ELECTRONIC CIGARETTES, AND ELECTRONIC CIGARETTE” and filed on Mar. 14, 2022, and Chinese Patent Application No. 202210411695.7, entitled “VAPORIZATION CORE COMPONENT FOR ELECTRONIC CIGARETTES, CARTRIDGE FOR ELECTRONIC CIGARETTES, AND ELECTRONIC CIGARETTE” and filed on Apr. 19, 2022. The entire contents of the above-referenced applications are incorporated herein by reference.

FIELD

The present disclosure relates to a vaporization core component for electronic cigarettes, a cartridge for electronic cigarettes, and an electronic cigarette.

BACKGROUND

An electronic cigarette usually includes a cartridge and a cigarette rod. The cartridge is installed on the cigarette rod and can generate an aerosol for a human body to inhale. The cartridge includes a liquid storage bin, an air channel, a vaporization cavity, and a vaporization core. The liquid storage bin is provided with an e-liquid for generating the aerosol. The e-liquid enters the vaporization cavity through the vaporization core and is vaporized into the aerosol, and the aerosol is inhaled by the user through the air channel.

In the related art, the vaporization core is the main liquid absorption and vaporization component in the cartridge. When the liquid absorption area of the vaporization core is large, the e-liquid permeates in the non-high temperature region of the vaporization surface. This not only leads to a waste of the e-liquid, but also reduces the vaporization degree of the vaporized airflow in the vaporization cavity, affecting the user's vaping experience.

SUMMARY

An objective of embodiments of the present disclosure is to provide technical solutions of a vaporization core component for electronic cigarettes, a cartridge for electronic cigarettes, and an electronic cigarette.

A first aspect of the embodiments of the present disclosure provides a vaporization core component for electronic cigarettes, including:

-   -   a liquid guide body, where the liquid guide body has a first end         surface and a second end surface, at least a part of the first         end surface is a liquid absorption region, the liquid absorption         region is configured to communicate with a liquid storage cavity         of an electronic cigarette, at least a part of the second end         surface is a vaporization region, a position of the liquid         absorption region is opposite to a position of the vaporization         region, and an area of the liquid absorption region is smaller         than an area of the vaporization region; and     -   a heating element, where the heating element is arranged in the         vaporization region of the second end surface.

According to some embodiments of the present disclosure, the area of the liquid absorption region is 9% to 95% of the area of the vaporization region.

According to some embodiments of the present disclosure, the area of the liquid absorption region is 20% to 70% of the area of the vaporization region.

According to some embodiments of the present disclosure, an area of the first end surface is smaller than an area of the second end surface.

According to some embodiments of the present disclosure, an entirety of the first end surface is the liquid absorption region.

According to some embodiments of the present disclosure, the first end surface is opposite to the second end surface.

According to some embodiments of the present disclosure, the liquid guide body has a liquid absorption portion and a vaporization portion, a side surface of the liquid absorption portion distant from the vaporization portion is the first end surface, and a side surface of the vaporization portion distant from the liquid absorption portion is the second end surface; and

-   -   along an extending direction from the first end surface to the         second end surface, a projected area of the liquid absorption         portion is smaller than a projected area of the vaporization         portion, and a step surface is formed between the liquid         absorption portion and the vaporization portion.

According to some embodiments of the present disclosure, the vaporization portion has a thickness dimension along the extending direction from the first end surface to the second end surface, and the thickness dimension of the vaporization portion ranges from 0.3 mm to 3 mm.

According to some embodiments of the present disclosure, the liquid absorption portion has a thickness dimension along the extending direction from the first end surface to the second end surface, and the thickness dimension of the liquid absorption portion ranges from 0.5 mm to 5 mm.

According to some embodiments of the present disclosure, the step surface surrounds the liquid absorption portion.

According to some embodiments of the present disclosure, the vaporization portion is of a plate-like structure; and

-   -   the second end surface is a plane, a zigzag curved surface, an         arc surface, or a spherical surface.

According to some embodiments of the present disclosure, the liquid absorption portion is one of a cubic structure, a trapezoidal prism structure, and a triangular prism structure.

According to some embodiments of the present disclosure, the liquid absorption portion includes a base and a liquid guiding boss, the base is connected with the vaporization portion, the liquid guiding boss is located on one side of the base distant from the vaporization portion, and a top surface of the liquid guiding boss is the first end surface.

According to some embodiments of the present disclosure, the liquid absorption portion is a plurality of liquid absorption units, the plurality of liquid absorption units are distributed spaced away on the vaporization portion, and top surfaces of the liquid absorption units form the first end surface.

According to some embodiments of the present disclosure, a sealing layer is arranged between the liquid absorption units.

According to some embodiments of the present disclosure, the sealing layer is arranged on a circumferential surface of each of the liquid absorption units and the step surface.

According to some embodiments of the present disclosure, the liquid absorption units are arranged in sequence on the vaporization portion.

According to some embodiments of the present disclosure, the liquid absorption units are liquid absorption plates, and the liquid absorption plates are distributed spaced away vertically on the vaporization portion.

According to some embodiments of the present disclosure, the vaporization portion is a porous ceramic body, and the liquid absorption portion is a porous ceramic or a liquid guide member.

According to some embodiments of the present disclosure, the vaporization core component further includes a vaporization-core sealing member, where the vaporization-core sealing member is sleeved on the liquid guide body.

According to some embodiments of the present disclosure, at a position corresponding to the first end surface, a liquid port is formed on the vaporization-core sealing member to expose at least a part of the first end surface, and the part of the first end surface exposed at the liquid port is the liquid absorption region.

According to some embodiments of the present disclosure, the liquid port is a plurality of uniformly distributed holes.

According to some embodiments of the present disclosure, the liquid port is a plurality of uniformly distributed guide channels.

According to some embodiments of the present disclosure, a liquid guide member is arranged in the guide channel.

According to some embodiments of the present disclosure, a sink is provided on the first end surface of the liquid guide body, and a bottom surface of the sink forms the liquid absorption region.

According to some embodiments of the present disclosure, the vaporization core component further includes a vaporization-core sealing member, where the vaporization-core sealing member is sleeved on the liquid guide body; and

-   -   at a position corresponding to the first end surface, a liquid         port is formed on the vaporization-core sealing member to expose         at least the bottom surface of the sink.

According to some embodiments of the present disclosure, the liquid port is a plurality of uniformly distributed holes, or the liquid port is a plurality of uniformly distributed guide channels.

According to some embodiments of the present disclosure, a liquid guide member is arranged in the guide channel.

A second aspect of the embodiments of the present disclosure provides a cartridge for electronic cigarettes, including:

-   -   a housing, where a liquid storage cavity, a vaporization cavity,         and an outlet pipeline are arranged in the housing, an air inlet         and an air outlet are provided on the housing, the air inlet         communicates the vaporization cavity, and the air outlet         communicates the vaporization cavity through the outlet         pipeline;     -   a vaporization core fixing member, where the vaporization core         fixing member is arranged in the housing, the liquid storage         cavity is separated from the vaporization cavity by the         vaporization core fixing member, and a mounting groove is         provided on the vaporization core fixing member; and     -   the vaporization core component according to the first aspect,         where the vaporization core component is arranged at the         mounting groove, the liquid absorption region of the first end         surface communicates the liquid storage cavity, and the second         end surface communicates the vaporization cavity.

According to some embodiments of the present disclosure, the housing has a length direction, a width direction, and a thickness direction, a maximum dimension of the housing in the length direction is larger than a maximum dimension of the housing in the width direction, and the maximum dimension of the housing in the width direction is larger than or equal to a maximum dimension of the housing in the thickness direction; and

-   -   a direction from the first end surface to the second end surface         is defined as the length direction.

According to some embodiments of the present disclosure, a communication channel is provided on the vaporization core fixing member, and the mounting groove and the communication channel are arranged along the width direction of the housing; and

-   -   one end of the communication channel is joined with the outlet         pipeline, and another end of the communication channel         communicates the vaporization cavity.

According to some embodiments of the present disclosure, at least a part of a structure of the communication channel is configured to form the mounting groove.

According to some embodiments of the present disclosure, the housing includes a housing body and a lower cover, the air outlet is formed at one end of the housing body along the length direction, another end of the housing body is open, and the lower cover is buckled at the open position of the housing body; and

-   -   the air inlet is formed on the lower cover.

According to some embodiments of the present disclosure, the air inlet includes an outer air inlet section and an inner air inlet section, both the outer air inlet section and the inner air inlet section extend along the length direction, the inner air inlet section communicates the vaporization cavity, and the outer air inlet section communicates outside; and

-   -   along the width direction, the inner air inlet section is         deviated by a predetermined distance in a direction away from         the communication channel relative to the outer air inlet         section.

According to some embodiments of the present disclosure, the vaporization core component includes a vaporization-core sealing member, where the vaporization-core sealing member is sleeved on the liquid guide body; and

-   -   the vaporization-core sealing member has a shielding portion         extending in the length direction, the shielding portion extends         into the vaporization cavity, and the shielding portion is         arranged at a position of communication between the vaporization         cavity and the communication channel, to limit an airflow at the         position of communication.

According to some embodiments of the present disclosure, the cartridge further includes an upper sealing member, where the upper sealing member has a sealing portion and a plug portion;

-   -   in the width direction and/or the thickness direction, an end         portion of the communication channel has an opening;     -   the sealing portion is sleeved on the vaporization core fixing         member, and the sealing portion is in extrusion fit with the         vaporization core fixing member and an inner wall of the         housing; and     -   the plug portion blocks the opening, and the plug portion is in         extrusion fit with the opening and the inner wall of the         housing.

According to some embodiments of the present disclosure, an air exchange channel is provided between the upper sealing member and the vaporization core fixing member, and the air exchange channel is configured to communicate the vaporization cavity with the liquid storage cavity.

According to some embodiments of the present disclosure, the vaporization core fixing member is provided with an air exchange sink spaced apart from the mounting groove, a through hole is formed on a side wall of the air exchange sink, and the through hole communicates the vaporization cavity;

-   -   a communication groove is formed on an outer peripheral surface         of the vaporization core fixing member, one end of the         communication groove communicates the through hole, and another         end of the communication groove communicates the liquid storage         cavity; and     -   the upper sealing member covers the through hole and the         communication groove, the upper sealing member, the through         hole, and the communication groove form the air exchange         channel, and when a pressure in the vaporization cavity is         greater than a pressure in the liquid storage cavity, the upper         sealing member deforms under a pressure difference between the         vaporization cavity and the liquid storage cavity to open the         air exchange channel.

According to some embodiments of the present disclosure, the cartridge further includes a liquid-impermeable and air-permeable member, where the liquid-impermeable and air-permeable member covers the air inlet.

According to some embodiments of the present disclosure, the cartridge further includes an air-guiding metal plate, where the air-guiding metal plate covers the air inlet.

According to some embodiments of the present disclosure, the lower cover includes a bottom plate and a side plate extending from the bottom plate toward the vaporization cavity, and an inner surface of the bottom plate is covered by a liquid absorption member surrounding the air inlet, or a liquid absorption member is supported by the side plate.

According to some embodiments of the present disclosure, the lower cover is provided with two conductive pins, the conductive pins extend along the length direction, one end of the conductive pin presses against the heating element, and another end of the conductive pin is exposed through an outer surface of the lower cover.

A third aspect of the embodiments of the present disclosure provides an electronic cigarette, including:

-   -   the cartridge according to the second aspect; and     -   a cigarette rod device, where an electrical component is         arranged in the cigarette rod device, the electrical component         is electrically connected with the heating element, and the         electrical component is configured to supply power to the         heating element.

One technical effect of the embodiments of the present disclosure is as follows.

A vaporization core component for electronic cigarettes according to the present disclosure includes a liquid guide body and a heating element. The liquid guide body has a first end surface and a second end surface. At least a part of the first end surface is a liquid absorption region. At least a part of the second end surface is a vaporization region. The heating element is arranged in the vaporization region of the second end surface.

In the vaporization core component, a position of the liquid absorption region is opposite to a position of the vaporization region, and an area of the liquid absorption region is smaller than an area of the vaporization region. The heating element is arranged in the vaporization region of the second end surface. That is to say, an e-liquid absorbed by the liquid absorption region can fully penetrate into at least a part of the surface of the vaporization region, to prevent the e-liquid absorbed by the liquid absorption region from gathering in the region outside the vaporization region to cause “e-liquid explosion” due to excessively quick penetration. This improves the efficiency of the e-liquid absorption in the liquid absorption region, ensures the vaporization purity of the vaporization core component, and prevents e-liquid leakage, thereby improving the taste of aerosol.

Other features and advantages of the disclosure will become apparent from the following detailed description of exemplary embodiments of the disclosure with reference to the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

Accompanying drawings are incorporated into and constitute a part of this specification, show embodiments that conform to the present disclosure, and are used together with this specification to describe the principle of the present disclosure.

FIG. 1 is a cross-sectional front view of a cartridge for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional side view of a cartridge for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 3 is an exploded cross-sectional view of a cartridge for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 4 is a first three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 5 is a second three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 6 is a first side view of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 7 is a third three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 8 is a fourth three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 9 is a fifth three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 10 is a second side view of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 11 is a first three-dimensional diagram of a vaporization-core sealing member of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 12 is a second three-dimensional diagram of a vaporization-core sealing member of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 13 is a first cross-sectional view of a vaporization-core sealing member of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 14 is a third three-dimensional diagram of a vaporization-core sealing member of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 15 is a fourth three-dimensional diagram of a vaporization-core sealing member of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 16 is a second cross-sectional view of a vaporization-core sealing member of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 17 is a sixth three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 18 is a third side view of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 19 is a seventh three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 20 is an eighth three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 21 is a ninth three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 22 is a tenth three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 23 is an eleventh three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 24 is a fifth three-dimensional diagram of a vaporization-core sealing member of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 25 is a sixth three-dimensional diagram of a vaporization-core sealing member of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 26 is a twelfth three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 27 is a seventh three-dimensional diagram of a vaporization-core sealing member of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 28 is an eighth three-dimensional diagram of a vaporization-core sealing member of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 29 is a thirteenth three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 30 is a ninth three-dimensional diagram of a vaporization-core sealing member of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 31 is a fourteenth three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 32 is a tenth three-dimensional diagram of a vaporization-core sealing member of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 33 is a fifteenth three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 34 is a sixteenth three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 35 is a seventeenth three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 36 is an eighteenth three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 37 is an eleventh three-dimensional diagram of a vaporization-core sealing member of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 38 is a nineteenth three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 39 is a twelfth three-dimensional diagram of a vaporization-core sealing member of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 40 is a twentieth three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 41 is a twenty-first three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 42 is a twenty-second three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure;

FIG. 43 is a twenty-third three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure; and

FIG. 44 is a twenty-fourth three-dimensional diagram of a vaporization core component for electronic cigarettes according to an embodiment of the present disclosure.

In the drawings:

-   -   100. cartridge;     -   1. liquid guide body; 11. first end surface; 111. sink; 12.         second end surface; 13. liquid absorption portion; 131. base;         132. liquid guiding boss; 133. liquid absorption unit; 14.         vaporization portion; 15. step surface; 16. sealing layer; 2.         heating element; 3. vaporization-core sealing member; 31. liquid         port; 32. shielding portion;     -   4. housing; 41. liquid storage cavity; 42. vaporization cavity;         43. outlet pipeline; 44. air inlet; 441. outer air inlet         section; 442. inner air inlet section; 45. air outlet; 46.         housing body; 47. lower cover; 5. vaporization core fixing         member; 51. mounting groove; 52. communication channel; 53. air         exchange sink; 531. through hole; 54. communication groove; 6.         upper sealing member; 61. sealing portion; 62. plug portion; 63.         first sealing ring; 7. air exchange channel; 8.         liquid-impermeable and air-permeable member; 9. liquid         absorption member; 91. cover plate of the liquid absorption         member; 92. second sealing ring; 10. conductive pin.

DETAILED DESCRIPTION

Various exemplary embodiments of the present disclosure are now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specified, opposite arrangement, numerical expressions, and numerical values of components and steps described in the embodiments do not limit the scope of the disclosure.

The following descriptions of at least one exemplary embodiment are merely illustrative, and in no way constitute any limitation on the present disclosure and application or use of the present disclosure.

Technologies, methods, and devices known to those of ordinary skill in related arts may not be discussed in detail, but where appropriate, the techniques, the methods, and the devices should be considered as a part of the specification.

In all examples shown and discussed herein, any specific value should be construed as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

It should be noted that like numerals and letters denote like terms in the following drawings. Therefore, once an item is defined in one accompanying drawing, the item does not need to be further discussed in the subsequent accompanying drawings.

Referring to FIG. 1 to FIG. 23 , a vaporization core component for electronic cigarettes according to an embodiment of a first aspect of the present disclosure includes

a liquid guide body 1 and a heating element 2. The liquid guide body 1 has a first end surface 11 and a second end surface 12. At least a part of the first end surface 11 is a liquid absorption region. The liquid absorption region faces a liquid storage cavity of an electronic cigarette and is configured to communicate with the liquid storage cavity of the electronic cigarette. The liquid absorption region may be an entire region facing the liquid storage cavity of the electronic cigarette or may be a region enclosed by a plurality of small regions facing the liquid storage cavity of the electronic cigarette. The liquid absorption region may absorb an e-liquid from the liquid storage cavity of the electronic cigarette, to facilitate vaporization of the e-liquid in the electronic cigarette. At least a part of the area on the second end surface 12 is a vaporization region, and the vaporization region faces a vaporization cavity of the electronic cigarette. In a specific embodiment, the liquid guide body 1 has a top surface and a bottom surface, and the e-liquid in the liquid storage cavity may penetrate from the top surface to the bottom surface of the liquid guide body 1. In other words, the top surface of the liquid guide body 1 may be the first end surface 11, and the bottom surface of the liquid guide body 1 may be the second end surface 12. In some other embodiments, the shape of the liquid guide body 1 may not have a flat top surface, and the top surface may be a surface formed by two planes or the top surface may be an arc surface. In these implementations, surfaces of the liquid guide body that face upward may be combined to form the first end surface. For example, in the implementation shown in FIG. 20 , two inclined surfaces that face upward constitute the first end surface together. The first end surface is configured to face the liquid storage cavity to absorb liquid.

A position of the liquid absorption region is opposite to a position of the vaporization region, and an area of the liquid absorption region is smaller than an area of the vaporization region. That is to say, the e-liquid absorbed by the liquid absorption region can fully penetrate into at least a part of the surface of the vaporization region, to prevent the e-liquid absorbed by the liquid absorption region from gathering in the region outside the vaporization region to cause “e-liquid explosion” due to excessively quick penetration. This improves the utilization efficiency of the e-liquid absorbed by the liquid absorption region and prevents e-liquid leakage.

Referring to FIG. 4 and FIG. 5 , the heating element 2 is arranged in the vaporization region of the second end surface 12. That is to say, after the e-liquid absorbed by the liquid absorption region penetrates into the surface of the vaporization region, the e-liquid is heated by the heating element 2 to form a vapor mixture (including but not limited to an aerosol, a suspended liquid, low-temperature vapor, and volatile gas), which enters the vaporization cavity. When the user uses the electronic cigarette, outside air enters the vaporization cavity and is mixed with vapor mixture in the vaporization cavity for inhalation by the user. When the position of the liquid absorption region is opposite to the position of the vaporization region and the area of the liquid absorption region is smaller than the area of the vaporization region, the liquid absorption region is prevented from absorbing excessive e-liquid which may penetrate into the second end surface 12 and gather in a low-temperature region outside the vaporization region of the second end surface 12 to cause “e-liquid explosion”, thereby ensuring the vaporization purity of the vapor mixture in the vaporization cavity and improving the vaping experience of the user.

Moreover, when an excessively large amount of e-liquid is accumulated in the low-temperature region outside the vaporization region, the high temperature generated by heating of the heating element 2 is not sufficient to vaporize the e-liquid in the non-vaporization region of the second end surface 12, leading to “e-liquid explosion” and “accumulation” of the e-liquid on the inner wall of the housing, resulting in e-liquid leakage. This problem can also be avoided when the position of the liquid absorption region is opposite to the position of the vaporization region and the area of the liquid absorption region is smaller than the area of the vaporization region in the present disclosure.

The vaporization core component for electronic cigarettes according to the embodiment of the first aspect of the present disclosure includes a liquid guide body 1 and a heating element 2. The liquid guide body 1 has a first end surface 11 and a second end surface 12. At least a part of the first end surface 11 is a liquid absorption region. At least a part of the second end surface 12 is a vaporization region. A position of the liquid absorption region is opposite to a position of the vaporization region, and an area of the liquid absorption region is smaller than an area of the vaporization region. The heating element 2 is arranged in the vaporization region of the second end surface 12. That is to say, an e-liquid absorbed by the liquid absorption region can fully penetrate into at least a part of the surface of the vaporization region, to prevent the e-liquid absorbed by the liquid absorption region from penetrating into the region outside the vaporization region. This improves the utilization efficiency of the e-liquid absorbed by the liquid absorption region, ensures the vaporization purity of the vaporization core component, and improves the vaping experience of the user.

According to some embodiments of the present disclosure, the area of the liquid absorption region is 9% to 95% of the area of the vaporization region.

Specifically, when the area of the liquid absorption region is smaller than the area of the vaporization region, the e-liquid absorbed by the liquid absorption region can be prevented from penetrating to the low-temperature region outside the vaporization region, i.e., the non-vaporization region in an excessive amount. The area of the liquid absorption region may be significantly smaller than the area of the vaporization region. For example, the area of the liquid absorption region may be 9%, 20%, 30%, 40%, or 50% of the area of the vaporization region, to ensure the utilization efficiency of the e-liquid absorbed by the liquid absorption region. Considering a vaporization amount requirement on the vaporization region, the area of the liquid absorption region may be set to be close to the area of the vaporization region. For example, the area of the liquid absorption region may be 60%, 70%, 80%, 90%, or 95% of the area of the vaporization region.

Further, to meet the vaporization amount requirement of the electronic cigarette on the vaporization region while ensuring the utilization efficiency of the e-liquid absorbed by the liquid absorption region, the area of the liquid absorption region may be set to 20%-70% of the area of the vaporization region.

According to some embodiments of the present disclosure, an area of the first end surface 11 is smaller than an area of the second end surface 12.

Specifically, because at least a part of the first end surface 11 is the liquid absorption region, the liquid absorption region may be an entire region facing the liquid storage cavity of the electronic cigarette or may be a region enclosed by a plurality of small regions facing the liquid storage cavity of the electronic cigarette.

When the area of the first end surface 11 is smaller than the area of the second end surface 12, the entirety of the first end surface 11 may be used as the liquid absorption region, i.e., the liquid absorption region may be formed on the entire first end surface 11, and at the same time the condition that the position of the liquid absorption region is opposite to the position of the vaporization region and the area of the liquid absorption region is smaller than the area of the vaporization region can still be satisfied; or a part of the first end surface 11 may be used as the liquid absorption region. For example, a middle portion of the first end surface 11 may be used as the liquid absorption region, and a peripheral part of the first end surface 11 may be shielded by a sealing component. Alternatively, a plurality of local regions of the first end surface 11 may form the liquid absorption region, and regions on the first end surface 11 other than the liquid absorption region may be shielded by a sealing component. Both the two manners can prevent the e-liquid absorbed by the liquid absorption region from penetrating into the low-temperature region outside the vaporization region and improve the utilization efficiency of the e-liquid absorbed by the liquid absorption region.

According to some embodiments of the present disclosure, referring to FIG. 4 to FIG. 7 , the first end surface is opposite to the second end surface, i.e., the first end surface is parallel to the second end surface. A part or an entirety of the first end surface is the liquid absorption region, and the heating element is arranged on the second end surface.

According to some embodiments of the present disclosure, referring to FIG. 4 and FIG. 5 , the liquid guide body 1 has a liquid absorption portion 13 and a vaporization portion 14, a side surface of the liquid absorption portion 13 distant from the vaporization portion 14 is the first end surface 11, and a side surface of the vaporization portion 14 distant from the liquid absorption portion 13 is the second end surface 12; and

along an extending direction from the first end surface 11 to the second end surface 12, a projected area of the liquid absorption portion 13 is smaller than a projected area of the vaporization portion 14, and a step surface 15 is formed between the liquid absorption portion 13 and the vaporization portion 14.

Specifically, because the side surface of the liquid absorption portion 13 distant from the vaporization portion 14 is the first end surface 11, and the side surface of the vaporization portion 14 distant from the liquid absorption portion 13 is the second end surface 12, the liquid absorption region is located on the liquid absorption portion 13, and the vaporization region is located on the vaporization portion 14. The liquid absorption region is configured to absorb the e-liquid from the liquid storage cavity of the electronic cigarette, and the vaporization region is configured to vaporize the e-liquid through the heating element 2. When the liquid guide body 1 is divided into the liquid absorption portion 13 and the vaporization portion 14, the liquid absorption portion 13 may be made of a material having high liquid absorption capacity, and the vaporization portion 14 may be made of a material having high temperature resistance. In addition, when the projected area of the liquid absorption portion 13 is smaller than the projected area of the vaporization portion 14 so that the step surface 15 located in a circumferential direction of the liquid absorption portion 13 is formed between the liquid absorption portion 13 and the vaporization portion 14, the liquid absorption efficiency of the liquid absorption portion 13 can be improved, and the effect and stability of vaporization of the e-liquid by the heating element 2 on the vaporization portion 14 can be ensured.

According to some embodiments of the present disclosure, referring to FIG. 3 to FIG. 6 , the vaporization portion 14 has a thickness dimension along the extending direction from the first end surface 11 to the second end surface 12, and the thickness dimension of the vaporization portion 14 ranges from 0.3 mm to 3 mm.

Specifically, provided that the structural integrity and high temperature resistance of the vaporization portion 14 can be ensured, the vaporization portion 14 may be made as thin as possible, so as not to occupy too much space in the electronic cigarette. For example, the thickness dimension of the vaporization portion 14 may be 0.5 mm, 0.8 mm, 1.0 mm, 1.5 mm, 2 mm, 2.5 mm, etc. along the extending direction from the first end surface 11 to the second end surface 12. Moreover, when the thickness of the vaporization portion 14 is small, the accumulation of excessive e-liquid droplets on the vaporization portion 14 can be avoided, thereby ensuring the vaporization purity of the vapor mixture in the vaporization cavity.

According to some embodiments of the present disclosure, the liquid absorption portion 13 has a thickness dimension along the extending direction from the first end surface 11 to the second end surface 12, and the thickness dimension of the liquid absorption portion 13 ranges from 0.5 mm to 5 mm.

Specifically, along the extending direction from the first end surface 11 to the second end surface 12, the thickness dimension of the liquid absorption portion 13 may be equal to or larger than the thickness of the vaporization portion 14, so as to increase the path for the liquid absorption portion 13 to absorb and provide the e-liquid and increase the amount of e-liquid to be vaporized. For example, along the direction from the first end surface 11 to the second end surface 12, the thickness dimension of the liquid absorption portion 13 may be 0.5 mm, 0.8 mm, 1.0 mm, 1.5 mm, 2 mm, 2.5 mm, 3.0 mm, 3.5 mm, 4 mm, 4.5 mm, etc.

According to some embodiments of the present disclosure, the step surface 15 surrounds the liquid absorption portion 13.

Specifically, when the projected area of the liquid absorption portion 13 is smaller than the projected area of the vaporization portion 14 so that the step surface 15 is formed between the liquid absorption portion 13 and the vaporization portion 14, for example, one side of the vaporization portion 14 close to the liquid absorption portion 13 has a length direction and a width direction. The projected size of the liquid absorption portion 13 may be smaller than the projected size of the vaporization portion 14 in the length direction, and the projected size of the liquid absorption portion 13 and the projected size of the vaporization portion 14 may be the same in the width direction, as shown in FIG. 7 . Alternatively, the projected size of the liquid absorption portion 13 may be smaller than the projected size of the vaporization portion 14 in the width direction, and the projected size of the liquid absorption portion 13 and the projected size of the vaporization portion 14 may be the same in the length direction, as shown in FIG. 8 . Alternatively, the projected size of the liquid absorption portion 13 may be smaller than the projected size of the vaporization portion 14 in both the length direction and the width direction, for example, as shown in FIG. 4 .

When the projected size of the liquid absorption portion 13 is smaller than the projected size of the vaporization portion 14 in both the length direction and the width direction, the step surface 15 surrounding the circumferential direction of the liquid absorption portion 13 may be formed between the liquid absorption portion 13 and the vaporization portion 14, to prevent the e-liquid absorbed by the liquid absorption portion from penetrating into the low-temperature region outside the vaporization portion and ensure the stability of vaporization of the e-liquid by the heating element 2 on the vaporization portion 14.

According to some embodiments of the present disclosure, referring to FIG. 4 to FIG. 10 , the vaporization portion 14 is of a plate-like structure; and

the second end surface is a plane, a zigzag curved surface, an arc surface, or a spherical surface.

Specifically, the vaporization portion 14 may adopt a structure having high structural strength and high temperature resistance, and the vaporization portion 14 may be made as thin as possible, for example, the vaporization portion 14 may be made into a flat or bent plate-like structure, so that the vaporization portion 14 does not occupy too much space in the electronic cigarette. Furthermore, limiting the thickness of the plate-like structure can prevent the accumulation of excessive e-liquid droplets on the vaporization portion 14 and ensure the vaporization efficiency of the heating element 2 to form the vapor mixture.

In addition, compared to the second end surface having the planar structure, when the second end surface is a zigzag curved surface, an arc surface, or a spherical surface, the heating area of the vaporization region on the vaporization portion 14 can be increased, to improve the vaporization efficiency. In this way, the volume of e-liquid vaporized on the vaporization region can reach 95%-98% of the volume of e-liquid on the second end surface, to effectively avoid the generation of vaporized condensate. FIG. 41 and FIG. 42 are schematic diagrams of a two-dimensional arc surface and a three-dimensional arc surface of the second end surface. FIG. 43 and FIG. 44 are schematic diagrams of a two-dimensional zigzag curved surface and a three-dimensional zigzag curved surface of the second end surface.

According to some embodiments of the present disclosure, referring to FIG. 4 and FIG. 19 to FIG. 22 , the liquid absorption portion 13 is one of a cubic structure, a trapezoidal prism structure, and a triangular prism structure.

Specifically, the cubic structure of the liquid absorption portion 13 may specifically be a cuboid or cubic structure. For example, in FIG. 4 , the liquid absorption portion 13 is of a cuboid structure, one side of the liquid absorption portion 13 is attached to the vaporization portion 14 along its length direction, and the side of the liquid absorption portion 13 distant from the vaporization portion 14 forms the first end surface 11. The liquid absorption portion 13 may be of a cylindrical structure shown in FIG. 21 .

In another embodiment, the trapezoidal prism structure of the liquid absorption portion 13 may specifically have a trapezoidal surface on at least one side. For example, in FIG. 19 , two side surfaces of the liquid absorption portion 13 on long sides of the bottom surface may be trapezoidal, and two side surfaces on short sides of the bottom surface may be rectangular. Alternatively, the two side surfaces on the short sides of the bottom surface may be trapezoidal, and the two side surfaces on the long sides of the bottom surface may be rectangular. Alternatively, the side surfaces on the long sides and the short sides of the bottom surface may all be trapezoidal, so that the top surface forms the first end surface 11. In addition, the trapezoidal prism structure of the liquid absorption portion 13 may also be a conical prism structure shown in FIG. 22 or a polygonal prism structure shown in FIG. 40 .

In still another embodiment, the triangular prism structure of the liquid absorption portion 13 may specifically have a triangular side surface on at least one side. For example, in FIG. 20 , two side surfaces of the liquid absorption portion 13 on long sides of the bottom surface may be triangular, and two side surfaces on short sides of the bottom surface may be rectangular. Alternatively, the two side surfaces on the short sides of the bottom surface may be triangular, and the two side surfaces on the long sides of the bottom surface may be rectangular. Alternatively, the side surfaces on the long sides and the short sides of the bottom surface may all be triangular, so that surfaces on two sides of the top form the first end surface 11. In addition, the triangular prism structure of the liquid absorption portion 13 may also be a conical structure or a polygonal structure, i.e., a circumferential surface of the conical or polygonal structure forms the first end surface 11.

According to some embodiments of the present disclosure, referring to FIG. 9 and FIG. 10 , the liquid absorption portion 13 includes a base 131 and a liquid guiding boss 132, the base 131 is connected with the vaporization portion 14, the liquid guiding boss 132 is located on one side of the base 131 distant from the vaporization portion 14, and a top surface of the liquid guiding boss 132 is the first end surface 11. In addition, the liquid guide body 1 may also be one of a cubic structure, an elliptical cylinder structure, a cylinder structure, a polyprism structure, a trapezoidal prism structure, and a triangular prism structure as a whole.

Specifically, because the liquid absorption region is configured to absorb the e-liquid from the liquid storage cavity of the electronic cigarette and the vaporization region is configured to vaporize the e-liquid through the heating element 2, the liquid absorption portion 13 may be configured to include a liquid guiding boss 132 having high liquid absorption efficiency, to improve the liquid absorption efficiency of the liquid absorption portion 13. For example, the liquid guiding boss 132 may be of a porous structure, and a channel of the liquid guiding boss 132 extends from the liquid absorption region to the base 131. The vaporization portion 14 needs to maintain high strength and high temperature resistance, and the arrangement of the base 131 allows for the liquid guiding boss 132, the base 131, and the vaporization portion 14 to form a unity. For example, first, the liquid guiding boss 132 and the base 131 are integrally formed, and then the base 131 is fixed to the vaporization portion 14. Alternatively, first, the base 131 and the vaporization portion 14 are integrally formed, and then the liquid guiding boss 132 is fixed to the base 131. Both the two manners can ensure the structural strength and integrity of the liquid guide body 1.

According to some embodiments of the present disclosure, referring to FIG. 17 , FIG. 18 , and FIG. 38 , the liquid absorption portion 13 is a plurality of liquid absorption units 133, the plurality of liquid absorption units 133 are distributed spaced away on the vaporization portion 14, and top surfaces of the liquid absorption units 133 form the first end surface 11.

Specifically, when the area of the liquid absorption region may be significantly smaller than the area of the vaporization region, the liquid absorption portion 13 may be configured as a plurality of dispersed liquid absorption units 133, so as not to form a conical liquid guide body 1 where the first end surface 11 is significantly smaller than the second end surface 12.

The plurality of liquid absorption units 133 may be distributed spaced away on the vaporization portion 14. In one embodiment, the plurality of the liquid absorption units 133 may be arranged side by side in the same direction on the vaporization portion 14, that is, the liquid absorption units 133 are arranged in sequence on the vaporization portion 14. Alternatively, the plurality of liquid absorption units 133 are arranged on the vaporization portion 14 in a zigzag, curved, or annular shape, so that the first end surface 11 formed by the top surfaces of the liquid absorption units 133 can be referred to as the liquid absorption region, and a structural balance at two ends of the liquid guide body 1 is ensured.

More importantly, the heating element 2 is usually arranged in the vaporization region of the second end surface 12 by screen printing. The positions of the plurality of liquid absorption units 133 may correspond to the position of the heating element 2. For example, the heating element 2 may be S-shaped, and the plurality of liquid absorption units 133 may also be distributed in an S-shape, so as to improve the adaptability and vaporization efficiency of the heating element 2 in vaporizing the e-liquid.

According to some embodiments of the present disclosure, referring to FIG. 17 and FIG. 18 , a sealing layer 16 is arranged between the liquid absorption units 133.

Specifically, when the plurality of liquid absorption units 133 are distributed spaced away on the vaporization portion 14, a gap is left between every two adjacent liquid absorption units 133. If a large amount of the e-liquid is retained in the gap for a long time, sufficient e-liquid cannot be obtained from the vaporization portion 14, and the frequency of e-liquid replenishing to the electronic cigarette is increased. The arrangement of the sealing layer 16 between the liquid absorption units 133, i.e., the use of the sealing layer 16 to fill up the gaps between the adjacent liquid absorption units 133, can ensure that the e-liquid absorbed by the liquid absorption portion 13 can fully penetrate into the vaporization portion 14, to ensure the vaporizing efficiency of the heating element 2 on the vaporization portion 14.

According to some embodiments of the present disclosure, the sealing layer 16 is arranged on a circumferential surface of each of the liquid absorption units 133 and the step surface 15. That is to say, the sealing layer 16 not only can prevent the e-liquid from leaking from the circumferential surface of the liquid absorption unit 133 into the gap between adjacent liquid absorption units 133, but also can prevent the e-liquid from leaking to the step surface 15. The region on the second end surface 12 opposite to the step surface 15 is the non-vaporization region, in other words, the sealing layer 16 can prevent the e-liquid from penetrating into the non-vaporization region of the second end surface 12, thereby improving the efficiency of vaporizing the e-liquid in the vaporization region.

According to some embodiments of the present disclosure, the liquid absorption units 133 are liquid absorption plates, and the liquid absorption plates are distributed spaced away vertically on the vaporization portion 14. For example, when the plurality of liquid absorption plates are arranged side by side spaced away and distributed vertically on the vaporization portion 14, the distances between adjacent liquid absorption plates may be the same or different, which is not limited in the embodiments of the present disclosure.

According to some embodiments of the present disclosure, the vaporization portion 14 is a porous ceramic body, and the liquid absorption portion 13 is a porous ceramic or a liquid guide member.

Specifically, to ensure the structural strength and high temperature resistance of the vaporization portion 14, the vaporization portion 14 may be configured as a porous ceramic body. To improve the efficiency of absorbing and providing the e-liquid by the liquid absorption portion 13, the liquid absorption portion 13 may be a porous ceramic body or a liquid guide member. The liquid absorption portion 13 and the vaporization portion 14 may be integrally formed as a whole porous ceramic body, or the liquid absorption portion 13 may be fixed to the vaporization portion 14 (for example, by adhesion).

Considering the structural integrity of the liquid guide body 1, the liquid absorption portion 13 may also be configured as a porous ceramic permeable to the e-liquid. When both the liquid absorption portion 13 and the vaporization portion 14 are porous ceramics, the liquid absorption portion 13 and the vaporization portion 14 may be integrally formed to ensure the connection strength and stability between the liquid absorption portion 13 and the vaporization portion 14.

According to some embodiments of the present disclosure, referring to FIG. 1 and FIG. 11 to FIG. 16 , the vaporization core component further includes a vaporization-core sealing member 3. The vaporization-core sealing member 3 is sleeved on the liquid guide body 1.

Because the liquid absorption region of the liquid guide body 1 faces the liquid storage cavity of the electronic cigarette and the vaporization region of the liquid guide body 1 faces the vaporization cavity of the electronic cigarette, the vaporization-core sealing member 3 may be sleeved on the liquid guide body 1, so that a seal is formed between the vaporization-core sealing member 3 and the liquid guide body 1, to prevent the e-liquid in the liquid storage cavity from leaking into the vaporization cavity through the circumferential direction of the liquid guide body 1.

According to some embodiments of the present disclosure, at a position corresponding to the first end surface 11, a liquid port 31 is formed on the vaporization-core sealing member 3 to expose at least a part of the first end surface 11, and the part of the first end surface 11 exposed at the liquid port 31 is the liquid absorption region.

Specifically, the liquid port 31 formed on the vaporization-core sealing member 3 may be opposite to the first end surface 11, and the liquid port 31 may expose the entire first end surface 11, so that the entire first end surface 11 is used as the liquid absorption region. Alternatively, an edge of the liquid port 31 may cover a part of the first end surface 11, so that a part of the first end surface 11 is used as the liquid absorption region. The size of the exposed liquid absorption region on the first end surface 11 may be specifically adjusted according to a vaporization requirement of the electronic cigarette.

According to some embodiments of the present disclosure, referring to FIG. 24 and FIG. 25 , the liquid port 31 is a plurality of uniformly distributed holes.

Specifically, the number of liquid ports 31 may be one or more. When the number of liquid ports 31 is one, the cross-section of the liquid port 31 may be rectangular, rhombic, circular, elliptical, or oblong so as to correspondingly form a rectangular, rhombic, circular, elliptical, or oblong liquid absorption region on the first end surface 11.

When the number of the liquid ports 31 more than one, the liquid ports 31 may also be straight-through openings having a rectangular, rhombic, circular, elliptical, or oblong cross-section. When the liquid ports 31 are uniformly distributed, a direct liquid absorption region and an indirect liquid absorption region may be formed on the first end surface 11. The direct liquid absorption region is a region on the first end surface 11 which is exactly opposite to the liquid ports 31, and the indirect liquid absorption region is a region enclosed by a plurality of direct liquid absorption regions. The uniform arrangement of the liquid ports 31 not only can improve the liquid absorption flexibility of the liquid absorption region, but also can effectively control the liquid absorption rate of the liquid absorption region.

In a specific implementation, referring to FIG. 24 , the liquid ports 31 include twelve circular openings and are uniformly distributed in two rows over the vaporization-core sealing member 3. Twelve circular direct liquid absorption regions and an indirect liquid absorption region enclosed by the twelve circular direct liquid absorption regions may be formed on the first end surface 11. In another specific implementation, referring to FIG. 25 , the liquid ports 31 include six circular openings distributed in a cross shape on the vaporization-core sealing member 3.

In addition, when the liquid absorption portion 13 is a plurality of liquid absorption units 133, the number of liquid ports 31 may be the same as the number of liquid absorption units 133. When the vaporization-core sealing member 3 is sleeved on the liquid guide body 1, the liquid ports 31 may correspond one-to-one to side surfaces of the liquid absorption portion 13 distant from the vaporization portion 14, as shown in FIG. 38 and FIG. 39 .

According to some embodiments of the present disclosure, the liquid port 31 is a plurality of uniformly distributed guide channels.

Specifically, when the number of liquid ports 31 is more than one, the liquid ports 31 may be configured as a plurality of uniformly distributed guide channels, to further adjust the liquid feed rate of the liquid ports 31. The guide channels may be channels that extend in a bent or curved manner. As the number of bent positions and the number of curved positions of the guide channels are directly related to the liquid feed rate of the liquid ports 31, the liquid feed rate of the liquid ports 31 can be flexibly adjusted by adjusting the number of bent positions and the number of curved positions of the guide channels.

According to some embodiments of the present disclosure, a liquid guide member is arranged in the guide channel.

Specifically, because the guide channel may be channels that extend in a bent or curved manner, a liquid guide member may be arranged in the guide channel, to avoid blocking of the e-liquid by the bent positions and the curved position of the guide channel. The material of the liquid guide member may be a liquid guide material such as a liquid guide cotton, to eliminate the large surface tension formed at the bent positions and the curved positions of the guide channel and ensure the smoothness of flow and penetration of the e-liquid in the guide channel.

According to some embodiments of the present disclosure, the vaporization-core sealing member 3 covers the step surface 15.

Specifically, because the region on the second end surface 12 opposite to the step surface 15 is the non-vaporization region, the arrangement of the vaporization-core sealing member 3 to cover the step surface 15 can prevent the e-liquid from leaking to the step surface 15, in other words, the vaporization-core sealing member 3 can prevent the e-liquid from penetrating into the non-vaporization region of the second end surface 12, thereby improving the efficiency of vaporizing the e-liquid in the vaporization region.

According to some embodiments of the present disclosure, referring to FIG. 23 , a sink 111 is provided on the first end surface 11 of the liquid guide body 1, and a bottom surface of the sink 111 forms the liquid absorption region.

Specifically, the entire first end surface 11 may be used as the liquid absorption region, so that the liquid guide efficiency of the liquid guide body 1 can be improved. However, a too high liquid guide efficiency may not be favorable for the liquid guide body 1 in actual use, i.e., a certain adjustment range is needed. When the bottom surface of the sink 111 forms the liquid absorption region, the liquid guide efficiency of the liquid guide body 1 can be flexibly adjusted by adjusting the size of the bottom surface of the sink 111, and the region of the first end surface 11 around the sink 111 may be covered by a sealing member.

In addition, the sink 111 on the first end surface 11 of the liquid guide body 1 may be a rectangular sink, an elliptical cylindrical sink, a cylindrical sink, or a polyprism sink, as shown in FIG. 23 to FIG. 33 ; or may be a through groove running through the liquid absorption portion 13, as shown in FIG. 34 and FIG. 37 . Moreover, the size of the vaporization-core sealing member 3 may also match the liquid guide body 1. For example, when the liquid guide body 1 is a cylindrical structure having a cylindrical sink 111, the vaporization-core sealing member 3 may also be a cylindrical structure having a cylindrical cavity therein, and the cylindrical sink 111 is sheathed in the cylindrical cavity, as shown in FIG. 29 and FIG. 30 .

According to some embodiments of the present disclosure, the vaporization core component further includes a vaporization-core sealing member 3. The vaporization-core sealing member 3 is sleeved on the liquid guide body 1.

At a position corresponding to the first end surface 11, a liquid port 31 is formed on the vaporization-core sealing member 3 to expose at least the bottom surface of the sink 111.

Specifically, the size of the liquid port 31 formed on the vaporization-core sealing member 3 may match the size of the bottom surface of the sink 111, i.e., the liquid port 31 exactly exposes the bottom surface of the sink 111, so that the bottom surface of the sink 111 forms the liquid absorption region. When the sink 111 is provided on the first end surface 11 of the liquid guide body 1, the e-liquid on the first end surface 11 flows into the sink 111 first. In other words, the liquid port 31 may expose the sink 111 and the region around the sink 111, and it can still be ensured that the bottom surface of the sink 111 is used as the liquid absorption region of the liquid guide body 1.

According to some embodiments of the present disclosure, the liquid port 31 is a plurality of uniformly distributed holes, or the liquid port 31 is a plurality of uniformly distributed guide channels.

Specifically, when the number of the liquid ports 31 more than one, the liquid ports 31 may also be straight-through openings having a rectangular, rhombic, circular, elliptical, or oblong cross-section. When the liquid ports 31 are uniformly distributed, a direct liquid absorption region and an indirect liquid absorption region may be formed on the first end surface 11. The direct liquid absorption region is a region on the first end surface 11 which is exactly opposite to the liquid ports 31, and the indirect liquid absorption region is a region enclosed by a plurality of direct liquid absorption regions. The uniform arrangement of the liquid ports 31 not only can improve the liquid absorption flexibility of the liquid absorption region, but also can effectively control the liquid absorption rate of the liquid absorption region.

In addition, when the number of liquid ports 31 is more than one, the liquid ports 31 may be configured as a plurality of uniformly distributed guide channels, to further adjust the liquid feed rate of the liquid ports 31. The guide channels may be channels that extend in a bent or curved manner. As the number of bent positions and the number of curved positions of the guide channels are directly related to the liquid feed rate of the liquid ports 31, the liquid feed rate of the liquid ports 31 can be flexibly adjusted by adjusting the number of bent positions and the number of curved positions of the guide channels.

According to some embodiments of the present disclosure, a liquid guide member is arranged in the guide channel. Because the guide channel may be channels that extend in a bent or curved manner, a liquid guide member may be arranged in the guide channel, to avoid blocking of the e-liquid by the bent positions and the curved position of the guide channel. This can eliminate the large surface tension formed at the bent positions and the curved positions of the guide channel and ensure the smoothness of flow and penetration of the e-liquid in the guide channel.

Referring to FIG. 1 to FIG. 3 , a cartridge 100 for electronic cigarettes according to an embodiment of a second aspect of the present disclosure includes:

-   -   a housing 4, where a liquid storage cavity 41, a vaporization         cavity 42, and an outlet pipeline 43 are arranged in the housing         4, an air inlet 44 and an air outlet 45 are provided on the         housing 4, the air inlet 44 communicates the vaporization cavity         42, and the air outlet 45 communicates the vaporization cavity         42 through the outlet pipeline 43;     -   a vaporization core fixing member 5, where the vaporization core         fixing member 5 is arranged in the housing 4, the liquid storage         cavity 41 is separated from the vaporization cavity 42 by the         vaporization core fixing member 5, and a mounting groove 51 is         provided on the vaporization core fixing member 5; and     -   the vaporization core component, where the vaporization core         component is arranged at the mounting groove 51, the liquid         absorption region of the first end surface 11 communicates the         liquid storage cavity 41, and the second end surface 12         communicates the vaporization cavity 42.

Specifically, when the liquid absorption region of the first end surface 11 communicates the liquid storage cavity 41 and the second end surface 12 communicates the vaporization cavity 42, because the position of the liquid absorption region is opposite to the position of the vaporization region, the area of the liquid absorption region is smaller than the area of the vaporization region, and the heating element 2 is arranged in the vaporization region of the second end surface 12, the e-liquid absorbed by the liquid absorption region can fully penetrate into at least a part of the surface of the vaporization region, to prevent the e-liquid absorbed by the liquid absorption region from penetrating into the region outside the vaporization region. This improves the utilization efficiency of the e-liquid absorbed by the liquid absorption region, ensures the vaporization purity of the cartridge 100, and improves the vaping experience of the user.

The operation process of the cartridge 100 when used in an electronic cigarette is described by way of example below.

After the cartridge 100 is combined with a cigarette rod, the user inhales through the air outlet 45. In this case, a pneumatic sensor (for example, an airflow sensor) in the cigarette rod detects the inhalation, and a power source in the cigarette rod is electrically connected to the heating element 2. When the heating element 2 operates, for example, when the heating element 2 performs heating, a to-be-vaporized medium (such as the e-liquid) in the liquid storage cavity 41 penetrates into the vaporization cavity 42 and is heated by the heating element 2 to form a vapor mixture (including but not limited to an aerosol, a suspended liquid, low-temperature vapor, and volatile gas) in the vaporization cavity 42. At the same time, outside air enters the vaporization cavity 42 through the air inlet 44 and is mixed with the vapor mixture in the vaporization cavity 42. The mixed vapor mixture is inhaled by the user through the air outlet 45 after flowing through the communication channel 52 and the outlet pipeline 43, so as to meet a usage demand of the user.

When the user stops inhaling through the air outlet 45, the to-be-vaporized medium in the liquid storage cavity 41 stops entering the vaporization cavity 42 through the heating element 2, so as to avoid useless consumption of the to-be-vaporized medium in the liquid storage cavity 41 and improve the utilization rate of the to-be-vaporized medium.

It needs to be explained herein that in some electronic cigarettes, the cartridge 100 and the cigarette rod are configured as separate structures, which can be combined detachably, and in some electronic cigarettes, the cartridge 100 and the cigarette rod are configured as a non-detachable structure. This is not specifically limited in the embodiments of the present disclosure.

According to some embodiments of the present disclosure, referring to FIG. 1 and FIG. 2 , the housing 4 has a length direction (indicated by arrow A in the figure), a width direction (indicated by arrow B in the figure), and a thickness direction (indicated by arrow C in the figure), a maximum dimension of the housing 4 in the length direction (indicated by arrow A in the figure) is larger than a maximum dimension of the housing 4 in the width direction (indicated by arrow B in the figure), and the maximum dimension of the housing 4 in the width direction (indicated by arrow B in the figure) is larger than or equal to a maximum dimension of the housing 4 in the thickness direction (indicated by arrow C in the figure); and

-   -   a direction from the first end surface 11 to the second end         surface 12 is defined as the length direction (indicated by         arrow A in the figure).

That is to say, the maximum dimension of the housing 4 in the thickness direction is the smallest, so that the housing 4 is flat. The maximum dimension of the housing 4 in the length direction and the maximum dimension of the housing 4 in the width direction depend on actual situations. When the cartridge 100 is used in an electronic cigarette, the length direction is generally the same as the length direction of the cigarette rod, i.e. the length direction is an extending direction from the cartridge to the cigarette rod.

According to some embodiments of the present disclosure, referring to FIG. 3 , a communication channel 52 is provided on the vaporization core fixing member 5, and the mounting groove 51 and the communication channel 52 are arranged along the width direction of the housing 4; and

-   -   one end of the communication channel 52 is joined with the         outlet pipeline 43, and another end of the communication channel         52 communicates the vaporization cavity 42.

Specifically, because the maximum dimension of the housing 4 in the width direction (indicated by arrow B in the figure) is larger than or equal to the maximum dimension of the housing 4 in the thickness direction (indicated by arrow C in the figure), the arrangement of the mounting groove 51 and the communication channel 52 in the width direction of the housing 4 can prevent the mounting groove 51 and the communication channel 52 from occupying a large size in the thickness direction of the housing 4 together, thereby ensuring a thin design of the housing 4 and enhancing a streamlined design effect of the housing 4 on the electronic cigarette.

When the one end of the communication channel 52 is joined with the outlet pipeline 43 and the another end of the communication channel 52 communicates the vaporization cavity 42, the vapor mixture in the vaporization cavity 42 can be inhaled by the user through the air outlet 45 after flowing through the communication channel 52 and the outlet pipeline 43, so as to meet a usage demand of the user.

According to some embodiments of the present disclosure, at least a part of a structure of the communication channel 52 is configured to form the mounting groove 51. That is, a part of the communication channel 52 is configured to communicate the vaporization cavity 42 with the outlet pipeline 43, and the other part is configured to form the mounting groove 51 for mounting the vaporization core component, thereby realizing the reuse of the communication channel 52. This not only simplifies the structure of the vaporization core fixing member 5, but also simplifies the assembly process of the electronic cigarette.

According to some embodiments of the present disclosure, referring to FIG. 1 to FIG. 3 , the housing 4 includes a housing body 46 and a lower cover 47, the air outlet 45 is formed at one end of the housing body 46 along the length direction, another end of the housing body 46 is open, and the lower cover 47 is buckled at the open position of the housing body 46; and

-   -   the air inlet 44 is formed on the lower cover 47.

Specifically, when the lower cover 47 is bucked at the open position of the housing body 46, an accommodating space may be formed in the housing 4, and the vaporization core fixing member 5 divides the accommodating space into the liquid storage cavity 41 and the vaporization cavity 42. The air outlet 45 and the air inlet 44 are respectively arranged on one side of the housing body 46 distant from the lower cover 47 and one side of the lower cover 47 distant from the housing body 46. An airflow entering from the air inlet 44 is mixed with the vapor mixture in the vaporization cavity 42, and then is inhaled by the user through the air outlet 45. In this way, a long-distance airflow path may be formed in the housing 4, thereby ensuring full vaporization of the e-liquid and improving the vaping experience of the user.

In addition, the cartridge 100 further includes a second sealing ring 92. The second sealing ring 92 is sandwiched between the lower cover 47 and an inner wall of the open position of the housing body 46, so as to ensure the sealing performance in the housing 4.

According to some embodiments of the present disclosure, referring to FIG. 1 to FIG. 3 , the air inlet 44 includes an outer air inlet section 441 and an inner air inlet section 442, both the outer air inlet section 441 and the inner air inlet section 442 extend along the length direction, the inner air inlet section 442 communicates the vaporization cavity 42, and the outer air inlet section 441 communicates outside; and

-   -   along the width direction, the inner air inlet section 442 is         deviated by a predetermined distance in a direction away from         the communication channel 52 relative to the outer air inlet         section 441.

Specifically, the airflow entering from the air inlet 44 is mixed with the vapor mixture in the vaporization cavity 42, and then is inhaled by the user through the air outlet 45 after flowing through the communication channel 52 and the outlet pipeline 43. In other words, an external airflow first flows through the outer air inlet section 441, then through the inner air inlet section 442, and then through the vaporization cavity 42 to the communication channel 52. When the inner air inlet section 442 is deviated by a predetermined distance in a direction away from the communication channel 52 relative to the outer air inlet section 441, it is equivalent to that a curved airflow path of the outer air inlet section 441, the inner air inlet section 442, and the communication channel 52 is formed. In this way, the length of the airflow path is increased, so that the airflow rate can be adjusted, and the outside airflow and the vapor flow can be better mixed.

The specific value of the predetermined distance can be adjusted according to the flow rate of the external airflow, the vaporization amount of the vapor flow, and a requirement on mixing of the external airflow and the vapor flow.

According to some embodiments of the present disclosure, referring to FIG. 1 and FIG. 14 to FIG. 16 , the vaporization core component includes a vaporization-core sealing member 3. The vaporization-core sealing member 3 is sleeved on the liquid guide body 1.

The vaporization-core sealing member 3 has a shielding portion 32 extending in the length direction, the shielding portion 32 extends into the vaporization cavity 42, and the shielding portion 32 is arranged at a position of communication between the vaporization cavity 42 and the communication channel 52, to limit an airflow at the position of communication.

Specifically, the vapor mixture in the vaporization cavity 42 may be driven by the outside airflow to flow to the communication channel 52, and when the shielding portion 32 extends into the vaporization cavity 42 and the shielding portion 32 is arranged at the position of communication between the vaporization cavity 42 and the communication channel 52, the shielding portion 32 blocks at least a part of the airflow from the vaporization cavity 42 to the communication channel 52, and therefore limits the flow rate of the airflow at the position of communication, thereby realizing the flexible adjustment of the flow rate.

According to some embodiments of the present disclosure, referring to FIG. 1 and FIG. 3 , the cartridge 100 further includes an upper sealing member 6. The upper sealing member 6 has a sealing portion 61 and a plug portion 62.

In the width direction and/or the thickness direction, an end portion of the communication channel 52 has an opening.

The sealing portion 61 is sleeved on the vaporization core fixing member 5, and the sealing portion 61 is in extrusion fit with the vaporization core fixing member 5 and an inner wall of the housing 4.

The plug portion 62 blocks the opening, and the plug portion 62 is in extrusion fit with the opening and the inner wall of the housing 4.

Specifically, the vaporization core fixing member 5 may divide the accommodating space in the housing 4 into the liquid storage cavity 41 and the vaporization cavity 42. When the sealing portion 61 is in extrusion fit with the vaporization core fixing member 5 and the inner wall of the housing 4, i.e., when the sealing portion 61 is sandwiched between the vaporization core fixing member 5 and the inner wall of the housing 4, the effect of the vaporization core fixing member 5 separating the liquid storage cavity 41 and the vaporization cavity 42 is improved, to prevent the e-liquid in the liquid storage cavity 41 from leaking into the vaporization cavity 42 from between the vaporization core fixing member 5 and the inner wall of the housing 4.

The opening at the end portion of the communication channel 52 facilitates the forming of the vaporization core fixing member 5, but there is also a risk that the vapor flow in the communication channel 52 leaks into the housing 4 through the opening. When the plug portion 62 blocks the opening and the plug portion 62 is in extrusion fit with the opening and the inner wall of the housing 4, i.e., the plug portion 62 blocks between the vaporization core fixing member 5 and the inner wall of the housing 4, the vapor flow in the communication channel 52 is prevented from leaking into the housing 4 from the opening of the vaporization core fixing member 5.

In addition, referring to FIG. 1 to FIG. 3 , the upper sealing member 6 further includes a first sealing ring 63. The first sealing ring 63 seals the joint between the communication channel 52 and the outlet pipeline 43 to ensure the sealing performance of the airflow channel in the cartridge 100.

According to some embodiments of the present disclosure, referring to FIG. 1 to FIG. 3 , an air exchange channel 7 is provided between the upper sealing member 6 and the vaporization core fixing member 5, and the air exchange channel 7 is configured to communicate the vaporization cavity 42 with the liquid storage cavity 41.

Specifically, when the pressure difference between the vaporization cavity 42 and the liquid storage cavity 41 is smaller than a set pressure, because the vaporization cavity 42 communicates the outside through the air inlet 44, i.e., the pressure in the vaporization cavity 42 is close to or equal to atmospheric pressure, the pressure in the liquid storage cavity 41 is maintained in a state in which the liquid can be smoothly fed. In this case, the air exchange channel 7 is in a closed state, and the liquid in the liquid storage cavity 41 can be prevented from entering the vaporization cavity 42 through the air exchange channel 7. When the pressure difference between the vaporization cavity 42 and the liquid storage cavity 41 is greater than or equal to the set pressure, the air exchange channel 7 is opened due to the pressure difference between the vaporization cavity 42 and the liquid storage cavity 41, thereby achieving a pressure balance between the vaporization cavity 42 and the liquid storage cavity 41.

According to some embodiments of the present disclosure, referring to FIG. 3 , the vaporization core fixing member 5 is provided with an air exchange sink 53 spaced apart from the mounting groove 51. A through hole 531 is formed on a side wall of the air exchange sink 53, and the through hole 531 communicates the vaporization cavity 42.

A communication groove 54 is formed on an outer peripheral surface of the vaporization core fixing member 5, one end of the communication groove 54 communicates the through hole 531, and another end of the communication groove 54 communicates the liquid storage cavity 41.

The upper sealing member 6 covers the through hole 531 and the communication groove 54. The upper sealing member 6, the through hole 531, and the communication groove 54 form the air exchange channel 7. When a pressure in the vaporization cavity 42 is greater than a pressure in the liquid storage cavity 41, the upper sealing member 6 deforms under a pressure difference between the vaporization cavity and the liquid storage cavity to open the air exchange channel 7.

When the pressure in the vaporization cavity 42 is greater than the pressure in the liquid storage cavity 41, to be specific, when the pressure difference between the vaporization cavity 42 and the liquid storage cavity 41 is greater than or equal to the set pressure, the air exchange channel 7 is opened due to the pressure difference between the vaporization cavity 42 and the liquid storage cavity 41. To be specific, due to the pressure difference between the vaporization cavity 42 and the liquid storage cavity 41, the upper sealing member 6 deforms, so that the upper sealing member 6 can release the blocking of the through hole 531 and the communication groove 54. In this case, the vaporization cavity 42 replenishes for the airflow in the liquid storage cavity 41, so that the to-be-vaporized medium in the liquid storage cavity 41 can smoothly flow to the heating element 2.

When the pressure in the vaporization cavity 42 is not greater than or is slightly greater than the pressure in the liquid storage cavity 41, i.e., when the pressure difference between the vaporization cavity 42 and the liquid storage cavity 41 is less than the set pressure, a pressure balance is achieved between the liquid storage cavity 41 and the vaporization cavity 42, and the air exchange channel 7 is closed, so that the to-be-vaporized medium can smoothly flow to the heating element 2. Therefore, the pressure difference between the liquid storage cavity 41 and the vaporization cavity 42 can be effectively adjusted through the air exchange channel 7, so that the pressure in the liquid storage cavity 41 can be greater than the pressure in the vaporization cavity 42, to ensure that the to-be-vaporized medium can smoothly flow to the heating element 2 and be effectively vaporized.

According to some embodiments of the present disclosure, the cartridge further includes a liquid-impermeable and air-permeable member. The liquid-impermeable and air-permeable member 8 covers the air inlet 44.

According to some embodiments of the present disclosure, the cartridge further includes an air-guiding metal plate. The air-guiding metal plate covers the air inlet.

According to some embodiments of the present disclosure, the lower cover 47 includes a bottom plate and a side plate extending from the bottom plate toward the vaporization cavity, and an inner surface of the bottom plate is covered by a liquid absorption member 9 surrounding the air inlet 44, or a liquid absorption member 9 is supported by the side plate.

Specifically, when the liquid-impermeable and air-permeable member 8 blocks the air inlet 44, the condensed e-liquid in the vaporization cavity 42 can be prevented from flowing out of the air inlet 44 while ensuring that the outside airflow from the air inlet 44 can smoothly enter the vaporization cavity 42.

When the liquid absorption member 9 is supported by the side plate, the liquid absorption member is arranged around the air inlet 44. A cover plate 91 of the liquid absorption member may be arranged on the liquid absorption member 9, and the cover plate 91 of the liquid absorption member is configured to fix the liquid absorption member 9. If the heating element 2 stops operation after the to-be-vaporized medium such as the e-liquid is vaporized in the vaporization cavity 42, the vapor mixture in the vaporization cavity 42 will be condensed again. The liquid absorption member 9 can absorb the condensed to-be-vaporized medium. This prevents the condensed to-be-vaporized medium from leaking through the air inlet 44, improves the cleanliness of the cartridge 100 during use, and prevents a structure (e.g., the cigarette rod of the electronic cigarette) connected to the cartridge 100 from being corroded and blocked by the condensed to-be-vaporized medium.

According to some embodiments of the present disclosure, referring to FIG. 1 to FIG. 3 , the lower cover 47 is provided with two conductive pins 10. The conductive pins 10 extend along the length direction. One end of the conductive pin 10 presses against the heating element 2, and another end of the conductive pin 10 is exposed through an outer surface of the lower cover 47.

Specifically, after the cartridge 100 is combined with a cigarette rod, the user inhales through the air outlet 45. In this case, a pneumatic sensor (for example, an airflow sensor) in the cigarette rod detects the inhalation, and a power source in the cigarette rod is electrically connected to the heating element 2 through the conductive pins 10. When the heating element 2 operates, for example, when the heating element 2 performs heating, a to-be-vaporized medium (such as the e-liquid) in the liquid storage cavity 41 penetrates into the vaporization cavity 42 and is heated by the heating element 2 to form a vapor mixture (including but not limited to an aerosol, a suspended liquid, low-temperature vapor, and volatile gas) in the vaporization cavity 42. At the same time, outside air enters the vaporization cavity 42 through the air inlet 44 and is mixed with the vapor mixture in the vaporization cavity 42. The mixed vapor mixture is inhaled by the user through the air outlet 45 after flowing through the communication channel 52 and the outlet pipeline 43, so as to meet a usage demand of the user.

In addition, the cartridge 100 may further include an electrical connector, one end of the electrical connector extends into a groove in the liquid guide body 1 and is electrically connected with the heating element 2, and another end of the electrical connector may press against the conductive pin 10. In other words, the electrical connection between the conductive pins 10 and the heating element 2 is realized through the electrical connector.

An electronic cigarette according to an embodiment of a third aspect of the present disclosure includes

-   -   the cartridge 100; and     -   a cigarette rod device, where an electrical component is         arranged in the cigarette rod device, the electrical component         is electrically connected with the heating element 2, and the         electrical component is configured to supply power to the         heating element 2.

Specifically, an electrical component is arranged in the cigarette rod device, and the cigarette rod device has an accommodating groove with an open top end. The cartridge 100 includes the vaporization core component, at least a part of the housing 4 is inserted into the accommodating groove, and the vaporization core component is electrically connected with the electrical component. The heating element 2 in the vaporization core component may specifically be electrically connected to the electrical component through the conductive pins 10. The electrical component may supply power to the heating element 2 of the vaporization core component through the conductive pins 10 to realize the conversion between electric energy and heat energy in the heating element 2.

When the user uses the electronic cigarette, the user vapes through the air outlet 45. Outside air enters the vaporization cavity 42 through the air inlet 44. A sensor in the electronic cigarette detects a vaping action of the user, the electrical component is electrically connected to the heating element 2 to supply power to the heating element 2 to heat and vaporize a liquid in the liquid storage cavity 41 to form a vapor mixture. Air enters the vaporization cavity 42 and drives the vapor mixture to be inhaled by the user through the outlet pipeline 43 and the air outlet 45, so as to ensure the vaping experience of the user.

Although some specific embodiments of the present disclosure have been described in detail by way of examples, a person skilled in the art should understand that the foregoing examples are only for description and are not intended to limit the scope of the present disclosure. A person skilled in the art should appreciate that modifications may be made to the foregoing embodiments without departing from the scope and spirit of the present disclosure. The scope of protection of the present disclosure is defined by the appended claims. 

What is claimed is:
 1. A vaporization core component for electronic cigarettes, comprising: a liquid guide body, wherein the liquid guide body has a first end surface and a second end surface, at least a part of the first end surface is a liquid absorption region, the liquid absorption region is configured to communicate with a liquid storage cavity of an electronic cigarette, at least a part of the second end surface is a vaporization region, a position of the liquid absorption region is opposite to a position of the vaporization region, and an area of the liquid absorption region is smaller than an area of the vaporization region; and a heating element, wherein the heating element is arranged in the vaporization region of the second end surface.
 2. The vaporization core component for electronic cigarettes according to claim 1, wherein the area of the liquid absorption region is 9% to 95% of the area of the vaporization region.
 3. The vaporization core component for electronic cigarettes according to claim 1, wherein an area of the first end surface is smaller than an area of the second end surface.
 4. The vaporization core component for electronic cigarettes according to claim 1, wherein an entirety of the first end surface is the liquid absorption region.
 5. The vaporization core component for electronic cigarettes according to claim 1, wherein the liquid guide body has a liquid absorption portion and a vaporization portion, a side surface of the liquid absorption portion distant from the vaporization portion is the first end surface, and a side surface of the vaporization portion distant from the liquid absorption portion is the second end surface; and along an extending direction from the first end surface to the second end surface, a projected area of the liquid absorption portion is smaller than a projected area of the vaporization portion, and a step surface is formed between the liquid absorption portion and the vaporization portion.
 6. The vaporization core component for electronic cigarettes according to claim 1, wherein the vaporization portion has a thickness dimension along the extending direction from the first end surface to the second end surface, and the thickness dimension of the vaporization portion ranges from 0.3 mm to 3 mm.
 7. The vaporization core component for electronic cigarettes according to claim 5, wherein the liquid absorption portion has a thickness dimension along the extending direction from the first end surface to the second end surface, and the thickness dimension of the liquid absorption portion ranges from 0.5 mm to 5 mm.
 8. The vaporization core component for electronic cigarettes according to claim 5, wherein the step surface surrounds the liquid absorption portion.
 9. The vaporization core component for electronic cigarettes according to claim 5, wherein the liquid absorption portion comprises a base and a liquid guiding boss, the base is connected with the vaporization portion, the liquid guiding boss is located on one side of the base distant from the vaporization portion, and a top surface of the liquid guiding boss is the first end surface.
 10. The vaporization core component for electronic cigarettes according to claim 5, wherein the liquid absorption portion is a plurality of liquid absorption units, the plurality of liquid absorption units are distributed spaced away on the vaporization portion, and top surfaces of the liquid absorption units form the first end surface.
 11. The vaporization core component for electronic cigarettes according to claim 10, wherein a sealing layer is arranged between the liquid absorption units.
 12. The vaporization core component for electronic cigarettes according to claim 11, wherein the sealing layer is arranged on a circumferential surface of each of the liquid absorption units and the step surface.
 13. The vaporization core component for electronic cigarettes according to claim 10, wherein the liquid absorption units are arranged in sequence on the vaporization portion.
 14. The vaporization core component for electronic cigarettes according to claim 10, wherein the liquid absorption units are liquid absorption plates, and the liquid absorption plates are distributed spaced away vertically on the vaporization portion.
 15. The vaporization core component for electronic cigarettes according to claim 1, further comprising a vaporization-core sealing member, wherein the vaporization-core sealing member is sleeved on the liquid guide body.
 16. The vaporization core component for electronic cigarettes according to claim 15, wherein at a position corresponding to the first end surface, a liquid port is formed on the vaporization-core sealing member to expose at least a part of the first end surface, and the part of the first end surface exposed at the liquid port is the liquid absorption region.
 17. The vaporization core component for electronic cigarettes according to claim 16, wherein the liquid port is a plurality of uniformly distributed holes.
 18. The vaporization core component for electronic cigarettes according to claim 16, wherein the liquid port is a plurality of uniformly distributed guide channels.
 19. A cartridge for electronic cigarettes, comprising: a housing, wherein a liquid storage cavity, a vaporization cavity, and an outlet pipeline are arranged in the housing, an air inlet and an air outlet are provided on the housing, the air inlet communicates the vaporization cavity, and the air outlet communicates the vaporization cavity through the outlet pipeline; a vaporization core fixing member, wherein the vaporization core fixing member is arranged in the housing, the liquid storage cavity is separated from the vaporization cavity by the vaporization core fixing member, and a mounting groove is provided on the vaporization core fixing member; and the vaporization core component according to claim 1, wherein the vaporization core component is arranged at the mounting groove, the liquid absorption region of the first end surface communicates the liquid storage cavity, and the second end surface communicates the vaporization cavity.
 20. An electronic cigarette, comprising: the cartridge according to claim 19; and a cigarette rod device, wherein an electrical component is arranged in the cigarette rod device, the electrical component is electrically connected with the heating element, and the electrical component is configured to supply power to the heating element. 